diff --git a/backends/CMakeLists.txt b/backends/CMakeLists.txt
index 9ecb3b5c2c3b95233bdf10e75cc2b3376143217d..1c056d11584b07a24dcb15d0fee0111023327560 100644
--- a/backends/CMakeLists.txt
+++ b/backends/CMakeLists.txt
@@ -9,6 +9,7 @@ if (PROTOBUF_FOUND)
 
 if (NOT WIN32)
 	ADD_SUBDIRECTORY(frotz)
+	ADD_SUBDIRECTORY(skype)
 endif()
 
 endif()